I'm one of those.
I had Ro on pre-order but canceled because I have to make some allowances.
I've pretty much stopped all other collections. And soon I will have an entire wall of Moducase displays to put them in, whenever they decide to ship it. I'm hoping it will be here by Christmas.
I just got Mantis delivered, and she's probably gonna be the last MCU figure I get. Likewise whenever they ship Han Solo.
I dont know how long the Exo train is going to run, but I'm on it the whole way.
Yeah, for better or for worse, I'm pretty much in the same place as you.
Star Trek was my first Sci-Fi love as I'm sure it was for most of us. For me it was syndicated reruns of TOS that I watched every day after school like a religion!
So, when the collection started, it was all about those AMT Trek model kits that I built with my Day (which is to say I watched him build them!).
And my first foray into figures were the Mego Trek dollies that were SO awesome to have at the time. Then one Christmas, I got the TOS bridge playset with "working" transporter, and I was in Heaven! Still have it to this day along with all the figures!
Then Star Wars come along, and I set off on a new course, but never forgetting my Trek roots.
So, when the high-end figure collection started, it was ALL Star Wars for me. Sideshow Old Ben, Luke and Han were my first and DX06 Luke was my first Hot Toys piece.
It took my quite a while to bend my knee and bring home an MCU figure from Hot Toys, but those first few diecast Iron Men got the job done! And then it was lights out. Didn't get absolutely everything HT put out by a long shot, but it sure felt that way! Not to mention several Premium Format Figures (statues) to round it all out!
All this to say that I think my Star Wars and Marvel/DC collections are pretty much complete now aside from a few Ahsoka figures that have yet to drop and when my Mantis figure comes in. May not be closing the door completely, but I believe my days of getting 10 or so SW/MCU/DC figures a year are well behind me.
Which leaves EXO Trek!
I won't quit until I have the following from each line (assuming they are made) and not including ones I already have on preorder:
DS9:
Jadzia, O'Brien, Worf, Garack, Gul Dukat
TNG:
Jadzia, Riker, Troi
TOS*:
Jadzia, Kirk, Spock, McCoy, Uhura, Chekov, Sulu, A Klingon or two if done well
*(Assuming the EXO entries are obvious upgrades from QMX)
Discovery:
Jadzia, Lorca, Tilly, Stamets, Culber, Detmer, Admiral Cornwell, Ash Tyler
SNW:
Jadzia, Una, Chapel, Captain Batel, M'Benga, Hot Alien Girl who took over the ship for an hour or so...
TWOK:
Jadzia, Saavik**, Kirk, Spock, McCoy, Scotty, (Possibly Uhura, Sulu Chekov), Khan
And once these are in-hand, barring an unexpected one-off here and there (and of course the COMPLETE InArt LOTR collection including Jadzia), I think I'll call it a collection at that point and sell the camera!
Cheers!
**Yeah, I added Saavik even though I already have her on preorder, but she's Saavik, so she got added - and I like seeing her next to Jadzia...